import java.util.Scanner;
public class mycal{
	public static void main (String[] arges) {
		Scanner input = new Scanner(System.in);
		double a,b,c;
		String op = null;
		System.out.println("input two numbers:");
		a = input.nextDouble();
		b = input.nextDouble();
		System.out.println("input op:");
		op = input.next();
		System.out.println("enter result:");
		c = input.nextDouble();
		if(calcul.caculator(a,b,op) != c)
		    System.out.println("test failed!");
		else
			System.out.println("test passed!");
	}
}
